Stationary exerciser



FIG. 1 is a perspective view of stationary exerciser showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof; and,

FIG. 6 is a top plan view thereof.

The phantom line showing environment is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for stationary exerciser, as shown and described. 